Systems Analysis and Design Study Set 1
Quiz 9: Data Design
Influencing Behavior Through Norms and Expectations Set by the Organization's
Field X is functionally dependent on field Y if the value of field X depends on the value of field Y.
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A table design is in second normal form (2NF) if it is in 1NF and if all fields that are not part of the primary key are functionally independent of part of the primary key.
A popular rule of thumb is that a design is in 3NF if every nonkey field depends on the key, the whole key, and nothing but the key.
A table design is in third normal form (3NF) if it is in 2NF and if all nonkey fields are dependent on other nonkey fields.
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